<template>
  <div class="login-container">
    <!-- model:用于收集表单数据 rules:表单验证规则 -->
    <div class="background-image"></div>
    <el-form ref="loginForm"
             :model="loginForm"
             :rules="loginRules"
             class="login-form"
             auto-complete="on"
             label-position="left">
      <!-- <div class="title-container">
        <h3 class="title">登录</h3>
      </div> -->
      <!-- 用户名文本框 -->
      <el-form-item prop="name">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input ref="username"
                  v-model="loginForm.name"
                  placeholder="Username"
                  name="name"
                  type="text"
                  tabindex="1"
                  auto-complete="on" />
      </el-form-item>
      <!-- 密码文本框 -->
      <el-form-item prop="pwd">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input :key="passwordType"
                  ref="password"
                  v-model="loginForm.pwd"
                  :type="passwordType"
                  placeholder="Password"
                  name="pwd"
                  tabindex="2"
                  auto-complete="on"
                  @keyup.enter.native="handleLogin" />
        <span class="show-pwd"
              @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>
      <!-- 登录按钮 -->
      <el-button :loading="loading"
                 style="width:100%;margin-bottom:30px;color:#01262e;font-size:20px;"
                 @click.native.prevent="handleLogin">登&nbsp&nbsp录</el-button>

      <!-- <div class="tips">
        <span style="margin-right:20px;">username: zjp</span>
        <span> password: any</span>
      </div> -->

    </el-form>
  </div>
</template>

<script>
import { validUsername } from '@/utils/validate'
import {
  getToken,
  setToken,
  removeToken,
  setUid,
  setRid
} from '@/utils/auth'
export default {
  name: 'Login',
  data () {
    // 表单验证用户名
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error('Please enter the correct user name'))
      } else {
        callback()
      }
    }
    // 表单验证密码
    const validatePassword = (rule, value, callback) => {
      if (value.length < 2) {
        callback(new Error('The password can not be less than 6 digits'))
      } else {
        callback()
      }
    }
    return {
      // 登录属性
      loginForm: {
        name: 'zjp',
        pwd: '123'
      },
      // 登录规则
      loginRules: {
        name: [{ required: true, message: '请输入用户名称', trigger: 'blur' },
        { min: 3, max: 10, message: '长度在 3 到 5 个字符', trigger: 'blur' }],
        pwd: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    // 监视路由是否跳转
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd () {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    // 登录业务
    handleLogin () {
      console.log('login');

      this.$refs.loginForm.validate(async valid => {
        if (valid) {
          console.log('valid');
          this.loading = true
          console.log(this.$qs.stringify(this.loginForm));
          // this.$store.dispatch('user/login', this.$qs.stringify(this.loginFormm)).then(() => {
          //   this.$router.push({ path: this.redirect || '/' })
          //   this.loading = false
          // }).catch(() => {
          //   this.loading = false
          // })
          const res = await this.$API.user.login(this.$qs.stringify(this.loginForm))
          if (res.status == 200) {
            console.log(res.data.token);
            console.log(res);
            const res2 = await this.$API.user.getInfo(res.data.uid)
            if (res2.status == 200) {
              setToken(res.data.token)
              setUid(res.data.uid)
              setRid(res2.data.role.id)
              this.$router.push({ path: this.redirect || '/' })
              this.loading = false
            }

          }
          else {
            this.loading = false
          }
          console.log('res', res);
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  // background-color: $bg;
  overflow: hidden;
  position: relative;
  .background-image {
    position: absolute;
    /* 重点，不能让背景大过于展示的图片 */
    z-index: -1;
    width: 100%;
    height: 100%;
    filter: blur(5px); //重点：使用的是 filter 来实现的
    background: url(~@/assets/background.jpg);
    background-size: 100%;
    background-position: center;
    background-repeat: no-repeat;
  }
  .login-form {
    position: absolute;
    width: 520px;
    max-width: 100%;
    top: 40%;
    margin-left: -240px;
    margin-top: -200px;
    left: 50%;
    padding: 160px 35px 0;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
